JP3334849B2 - Surface plate trolley upper and lower two-stage line equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention performs pouring, cooling, unmolding, etc., while moving an unmolded sand mold molded by a mold molding machine and placed on a platen carriage together with the platen carriage. The present invention relates to an upper and lower two-stage line equipment for circulating a platen trolley.

[0002]

2. Description of the Related Art Conventionally, the above-described two-stage line equipment for a platform trolley is provided with upper and lower rails which are installed in parallel at an appropriate interval in the upper and lower two stages, and are vertically moved between the upper and lower rails. A lifter table with rails to be disposed, and a first extrusion pusher is disposed at an outer side of one end corresponding to the upper rail at an interval capable of entering the lifter table with rails, and at the outer side of the other end corresponding to the lower rail, A second extrusion pusher is arranged at an interval at which the lifter table with rails can enter, so that a large number of platen carts can be circulated.

[0003]

In the above-described conventional two-stage line equipment with a platen bogie as described above, the lifter table with two rails is raised only when both lifter tables correspond to the upper rail. It is possible to move a certain surface trolley,
Only when both of the lifter tables with rails are lowered to correspond to the lower rail, the platen cart above the lower rail can be moved. Therefore, there is a problem that it takes a long time to complete the circulating movement of the entire surface plate carts by one pitch. For this reason, the only way to shorten the cycle time was to increase the extrusion speed of the platen cart.However, if the extrusion speed was increased, there was a problem that the sand mold with a blank frame suddenly started and suddenly stopped, and the mold was deformed. . SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an upper and lower two-stage line equipment capable of lowering an extruding movement speed of a stool with the same circulation movement cycle time of the stool. With the goal.

[0004]

In order to achieve the above-mentioned object, a two-stage line equipment for upper and lower platens of the present invention is provided at upper and lower rails, which are installed in parallel at two upper and lower tiers, at both ends outside. A lifter table with a rail that moves up and down between the upper and lower rails, and a first extrusion pusher is arranged outside the one end corresponding to the upper rail at an interval at which the lifter table with the rail can enter. In a two-stage line equipment for upper and lower platen trucks in which a plurality of platen trucks can be circulated by arranging a second extrusion pusher at an interval at which the rail-equipped lifter table can enter, on the outside of the other end corresponding to the rail. An opening / closing roller machine that engages with the lower surface of the carriage and supports the carriage is disposed at the outer side of both ends of the upper rail.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, upper and lower rails 1,
2 are installed in parallel at an appropriate interval in two upper and lower stages, and below the outer positions of both ends of the upper and lower rails 1 and 2, rails 4 which are raised and lowered by cylinders 3 and 3A to move vertically between the upper and lower rails 1 and 2; The lifter tables 5 and 5A with 4A (see FIG. 2) are arranged. Further, a first pusher 6 is disposed at an outer side of one end corresponding to the upper rail 1 at an interval at which the lifter table 5 with the rail 4 can enter, and at an outer side of the other end corresponding to the lower rail 2. The second pusher 6A is arranged at an interval at which the lifter table with rail 5A can enter. In addition, stoppers 7, 7 are provided at positions facing the respective pushing pushers 6, 6A.
A is arranged. On the upper part of the upper and lower rails 1 and 2 and on one of the lifter tables 5A with rails 4A, a platen truck 8 is mounted in a dumpling shape.
The sand mold 9 is placed on the surface plate carrier 8 between the mold loading position, the pouring line position, the cooling line position on the lower rail 2 and the mold unbalance position.

Further, opening / closing roller machines 10 and 10 which engage with the lower surface of the trolley 8 and support the trolley 8 are provided at the outer ends of both ends of the upper rail 1 with the lifter table 5 with rails 4 and 4A. , 5A. now,
The opening and closing roller machines 10 and 10 will be described in more detail with reference to FIG.
13 are provided at appropriate intervals, and one set is provided on each of the right and left sides in FIG. 2. Rotating shafts 14 and 14 are rotatably supported between the brackets 12 and 13. Attachment pieces 15, 15 are fixed to one ends of the rotating shafts 14, 14, and the attachment pieces 15, 15 are connected to piston rods of horizontal cylinders 16, 16 attached to the lower surface of the ceiling frame 11. In addition, the rotating shafts 14, 14 are provided with a rotating arm 1 extending to a position corresponding to the upper rail 1.
7, 17 are fixedly suspended, and the rotating arms 17, 1
At the lower end of 7, a plurality of rollers 18, 18 which engage with the lower surface of the trolley 8 mounted on the upper rail 1
Are fixed to the roller frames 19, 19 on which the base plate carrier 8 is not mounted on the opening / closing roller unit 10 on the right side in FIG.

[0007] With the above-mentioned structure, in the state of FIG. 1, a poured mold is sent out in the front-rear direction of the paper by a cylinder (not shown) at a mold sending-out balancing position, and the mold is displaced. The mold is removed from the platen cart 8 at the upper right end of the table. Next, the first extrusion pusher 6 and the second extrusion pusher 6A operate simultaneously, and the platen cart 8,
The eighth group is moved by one pitch. As a result, the platen truck 8 with the sand mold 9 placed on the rollers 18 of the left-hand opening and closing roller machine 10 is carried in while the lower surface of the truck is engaged and supported as shown in FIG. On the other hand, on the lifter table 5 with the rails 4 on the right side, an empty platen cart 8 is carried in, and the left rail 4A
The upper part of the attached lifter table 5A becomes empty. Next, the horizontal cylinders 16, 16 of the opening and closing roller machine 10 on the right side are operated to open the rollers 18, 18 together with the rotating arms 17, 17 in FIG. , 4A lifter table 5, 5A rails 4, 4
It is raised until A is at the same level as the level of the upper rail 1 and the lower rail 2.

Next, the opening / closing roller unit 10 on the right side is closed by the reverse operation to receive the base plate carriage 8 on the lifter table 5 with the rails 4, while the opening / closing roller unit 10 on the left side is received.
Is opened and the platen cart 8 on which the sand mold 9 is placed is delivered to the lifter table 5A with the rails 4 and the sand mold 9 is placed at the mold loading position.
Is placed on the platform carriage 8, and the lifter tables 5, 5A with the rails 4, 4A are further lowered to the state shown in FIG. By repeating the above operation, the trolley 8 and the sand mold 9 are sequentially moved. During this time, the molten metal is injected into the sand mold 9 at the pouring line position, and the molten metal is cooled at the cooling line position. Then, the mold is removed at the mold delivery position. That is, since the movement of the surface plate truck 8 is performed simultaneously on the upper and lower rails 1 and 2, when the surface plate truck 8 is circulated and moved in the same cycle time,
The moving speed of the trolley 8 can be reduced, and the displacement of the sand mold can be eliminated.

[0009]

As is clear from the above description, the present invention engages with the lower surface of the trolley and supports the trolley at positions outside both ends of the upper rail of the upper and lower rails installed in two stages. Since the opening and closing roller machine is arranged, the circulation movement speed of the platen truck can be increased,
In the case of circulating the platen trolley in the same cycle time, the moving speed of the platen trolley can be reduced, and there is an effect that the mold deviation of the sand mold due to sudden start and sudden stop can be eliminated.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a partially cutaway showing an embodiment of the present invention.

FIG. 2

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper rail 2 Lower rail 4 4A rail 5 5A Lifter table 6 First extrusion pusher 6A Second extrusion pusher 8 Surface plate carrier 9 Sand mold 10 Opening / closing roller machine 17 Rotating arm 18 Roller

Claims (2)

(57) [Claims] 1. Upper and lower rails 1 and 2 which are installed in parallel in two stages at upper and lower positions at outer positions on both ends of the upper and lower rails.
Rails 4 that move up and down between two, lifter tables 5 with 4A,
5A, and a first pusher 6 disposed outside the one end corresponding to the upper rail 1 with an interval allowing the lifter table 5 with the rail 4 to enter, and the other end outside the other end corresponding to the lower rail 2. In a two-stage liner truck upper and lower line equipment in which a large number of platen trucks 8 can be circulated by arranging second extrusion pushers 6A at intervals at which the lifter table 5A with rails 4A can enter. An opening / closing roller machine (10, 10) which engages with the lower surface of the carriage (8) and supports the carriage (8) at positions outside the opposite ends of the rail (1). 2. The opening and closing roller machines 10, 10 are characterized in that rollers 18, 18 are attached to lower ends of rotating arms 17, 17 suspended with their upper ends rotatable. The two-stage line equipment for upper and lower platen carts according to claim 1.